diff --git a/dev-environment.yml b/dev-environment.yml
index 5e9c5b16..65a6a138 100644
--- a/dev-environment.yml
+++ b/dev-environment.yml
@@ -25,7 +25,7 @@ dependencies:
   - jpype1 >= 1.4.1
   - labeling >= 0.1.12
   - magicgui >= 0.5.1
-  - napari >= 0.4.17
+  - napari >= 0.4.17, <0.5
   - numpy
   - openjdk=8
   - pandas
diff --git a/environment.yml b/environment.yml
index bc96f7b0..ccbd8798 100644
--- a/environment.yml
+++ b/environment.yml
@@ -25,7 +25,7 @@ dependencies:
   - jpype1 >= 1.4.1
   - labeling >= 0.1.12
   - magicgui >= 0.5.1
-  - napari >= 0.4.17
+  - napari >= 0.4.17, <0.5
   - numpy
   - openjdk=8
   - pandas
diff --git a/pyproject.toml b/pyproject.toml
index 667a02ab..05908254 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dependencies = [
     "jpype1 >= 1.4.1",
     "labeling >= 0.1.12",
     "magicgui >= 0.5.1",
-    "napari >= 0.4.17",
+    "napari >= 0.4.17, <0.5",
     "numpy",
     "pandas",
     "pyimagej >= 1.4.1",